Editor's Note: TheStreet ratings do not represent the views of TheStreet's staff or its contributors. Ratings are established by computer based on metrics for performance (which includes growth, stock performance, efficiency and valuation) and risk (volatility and solvency). Companies with poor cash flow or high debt levels tend to earn lower ratings in our model All three major indices are trading down today with the Dow Jones Industrial Average ( ^DJI) trading down 20 points (-0.2%) at 12,795 as of Monday, Nov. 12, 2012, 11:49 AM ET. The NYSE advances/declines ratio sits at 1,283 issues advancing vs. 1,555 declining with 129 unchanged. The Chemicals industry currently is unchanged today versus the S&P 500, which is down 0.1%. A company within the industry that increased today was Valhi Incorporated ( VHI), up 4.1%. TheStreet Ratings group would like to highlight 4 stocks pushing the industry lower today: 4. Williams Partners ( WPZ) is one of the companies pushing the Chemicals industry lower today. As of noon trading, Williams Partners is down $0.47 (-0.9%) to $50.15 on light volume Thus far, 208,456 shares of Williams Partners exchanged hands as compared to its average daily volume of 584,900 shares. The stock has ranged in price between $50.09-$51.00 after having opened the day at $50.95 as compared to the previous trading day's close of $50.62. Williams Partners L.P., an energy infrastructure company, focuses on connecting North America's hydrocarbon resource plays to growing markets for natural gas and natural gas liquids. It operates in two segments, Gas Pipeline and Midstream Gas & Liquids. Williams Partners has a market cap of $18.4 billion and is part of the basic materials sector. The company has a P/E ratio of 20.5, above the S&P 500 P/E ratio of 17.7. Shares are down 15.6% year to date as of the close of trading on Friday. Currently there are 9 analysts that rate Williams Partners a buy, no analysts rate it a sell, and 2 rate it a hold. TheStreet Ratings rates Williams Partners as a buy. The company's strengths can be seen in multiple areas, such as its expanding profit margins and largely solid financial position with reasonable debt levels by most measures. We feel these strengths outweigh the fact that the company has had lackluster performance in the stock itself. Get the full Williams Partners Ratings Report now.